424020111 has 32 divisors (see below), whose sum is σ = 608982528. Its totient is φ = 261740160.

The previous prime is 424020101. The next prime is 424020143. The reversal of 424020111 is 111020424.

It is not a de Polignac number, because 424020111 - 2⁷ = 424019983 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (424020101) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 783501 + ... + 784041.

It is an arithmetic number, because the mean of its divisors is an integer number (19030704).

Almost surely, 2^424020111 is an apocalyptic number.

424020111 is a deficient number, since it is larger than the sum of its proper divisors (184962417).

424020111 is a wasteful number, since it uses less digits than its factorization.

424020111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 911.

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 424020111 is about 20591.7486144329. The cubic root of 424020111 is about 751.2690284336.

Adding to 424020111 its reverse (111020424), we get a palindrome (535040535).

The spelling of 424020111 in words is "four hundred twenty-four million, twenty thousand, one hundred eleven".